The choice between seamless and welded pipes depends on various factors, including the application requirements, budget constraints, and specific characteristics needed for the project. Here are some considerations to help determine which type may be better suited for a particular situation:

Seamless Pipes:

Strengths:

Superior strength due to their homogeneous structure without weld seams.

Better suited for high-pressure applications.

Smooth interior surface allows for better fluid flow.

Considerations:

Generally more expensive than welded pipes.

Limited availability in larger diameters.

More complex manufacturing process.

Welded Pipes:

Strengths:

Cost-effective compared to seamless pipes.

Available in larger sizes and lengths.

Suitable for most general applications.

Considerations:

Weld seams can be potential weak points.

Not as strong as seamless pipes in high-pressure environments.

Interior surface may not be as smooth as seamless pipes.

Selection Factors:

Pressure Requirements: Seamless pipes are preferable for high-pressure applications.

Corrosion Resistance: Consider the material and coating for corrosion-prone environments.

Budget Constraints: Welded pipes are generally more cost-effective.

Application Specifics: Determine requirements such as fluid transportation, structural use, or oil and gas transmission.

Availability: Consider the sizes and specifications required for the project.

In conclusion, neither type is universally "better" as the choice depends on the specific needs of the project. Seamless pipes offer superior strength and performance in high-pressure situations, while welded pipes are more cost-effective and suitable for general applications. It's essential to evaluate the specific requirements of the project to determine which type of pipe is the most appropriate choice.